Kerosene-stove construction



Aug. 31, 1926", 1,59%75 R. Q. HEGGEN$ 1 KEROSENE STOVE CONSTRUCTIONFiled P 1925 2 Sheets-Sheet 1 Aug- 31 1926.. 1,597,975

R. c. HIGGlNS KEROSENE STOVE CONSTRUCTION Filed April 20, 1925 2 Sheets-Sheet 2 Patented Aug. 31, 1926.

UNIT-ED stares rareat" caries.

[ROBERT C. HIGGINS, OF SOUTH BEND, INDIANA, ASSIGNOR TD MALLEABLE STEEL'B-ANGE MANUFACTURING COMP-ANY, OF SOUTH-BEND, INDIANA, A CORPORATIOLNor mint-ALMA. I

KEROSENE-S'IDVE consrnuc'rron.

Application filed April 20, 1925. Serial No. 24,363.

'This invention relates to improvementsin kerosene stoves and moreparticularly to a new and novel construction for a top plate forkerosene and other liquid hydrocarbon burning stoves.

The object of the invention is to produce an improved stove top,especially adapted for stoves equipped with kerosene burners andcalculated to afford more eflicient and uniform. heat- -transmission anddistribution to the cooking; utensils placed thereon.

A further object of the invention is to provide an improved constructionfor a louiurer plate adapted to he placed directly over the burner andso designed as to protect the burner from being; extinguished andotherwise fouled by drippings from the utensils in which food is being;cooked.

A preferred embodiment of the invention isdisclosed in theaccompanyingdrawings in which Figure l is a perspective view of aportion of the stove,

Figure 2" is a view in vertical section through the stove top and partsadjacent;

Figure '3 is an enlarged top plan view of a section of the stove topshowing the burner plate.

Figure 4 is a section through the burner plate taken on line 4', 4, ofFigure 3, andv Figure 5' is a view in bottom plan view of the burnerplate.

As clearly shown in Figures 1 and "2, the stove is generally of a designcommon to stoves oi this character, but differing radically in theconstruction of the top plate, or heating surface, which in the usualgas or kerosene stove is an open grille extending over the burners. Inthe present construction the top of the stove consists of a solid castiron plate 1,v of at least one quarter inch in thicl'mess, with apolished top surface. This top plate may be either of a single piece ormade up of two or more sections depending on the size of the stove. Thetop plate extends over the entire survface of the stove and extendsbeyond the *ifront and side edgesthereol, terminating in dewnwar-cllycurved edge 1% with.

Beneath thetop plate are located. one, two

or more burners .2, designed to burn with an exceedinglyhot blue flame,in the form of a'ring of small jets issuing from the openin'gs aroundthe edge er circular vaporizin'gniember 3, at the top of the burner.

Immediately over each burner is a circular burner plate 4, considerablygreater in diameter than the burner .beneath it, and re movably seatingin circular openings in the top plate, with its upper surface flushthere- The burner plate is also of a solid cast iron construction, butas will presently he seen is something more than a mere circular sectionof the stove plate.

These plates are cast somewhat thinner than the stove plate,except for aheavy rim 4 extending around the periphery thereof. Immediately inwardfrom the rim s is a series of radial slots 5, extending through theplate and inwardly toward the center a distance equal. to about onehalfthe radius of the plate, thus providing a solid or inipertorate centralportion approximately the same diameter as the burner top below it.

On the under surface of the plate, Figure 5'isa sp'i'derf-likearrangement of ribs 6, radiating from the center and in alignment withthe slots 5, beyond. These ribs taper slightly from the center outward,become less pronounced as they diverge. At. the inner ends of the slots5 these rihs terminate abruptly in downwardly projecting nubs 7,tapering slightly to a rounded point.

The plate is designed in this way for sev' eral reasons, the mostimportant being to "prevent the plate from warping or cracking under therapid changes in tempera ture,a-n'di the high temperatures to which 1tis sub ected. This accounts for the "reduced thickness and the radialreinforcing ribs on its under side. The outer ring of radial slots arealso prov ded to permit the "heat fronrthe burner to pass throu 'h andcome-in contact with the bottom ot'the cookingiut'ensil, although spaceda suilicient distance from the center to avoid direct contact of theflame therewith. In this way theheat ismoreeftecti y" utilized, by penmitting direct contact of the heat with the utensil beyond the Zoneimmediately above the flame.

The purpose of the nubs or projections 7 at the junction of the ribs andslots is one 7 especially desirable where burners of the open type areused, as a means for'protect- .ing the burner from being fouled or theflame extinguished by the contents of the utensils boiling over andflowing through the slots in the plate and thence onto the burner. Thusthe nubs provide barriers which effectually prevent the liquid fromBetween the lugs are a series of circumfer ential recesses or notches 9,likewise spaced apart at equal intervals and of about-the same lengthand breadth as the lugs. These notches form with the edges of the burnerplate a series of slots which serve two purposes, first, they provideadditional openings to permit the heat from the burner to pass throughin direct contact with the bottom of cooking utensil, and secondly, theyserve to provide a series of air spaces between the burner plate and thesurrounding top plate, thus decreasing the amount of heat which isconducted from the burner plate to the top plate. The desirability ofthis provision is obvious, since it confinesthe heat to the burnerplate, which ordinarly is about the size of the bottom of the cookingutensil and further, it avoids the unnecessary heating of the top platewith the attendant dissipation and loss; of the effective heat from theburner.

The combination therefore of a solid top plate and solid burner plates,imperforate except for the slots, constitutes a practical and usefulfeature in kerosene stoves of'the vapor or generating type, which burnwith i an exceedingly hot flame and therefore much better results areobtained by spreading the heat throughout a larger area of uniformtemperature rather than-confining it to a relatively small'area at avery high temperature directly above the burner. This is especially trueunder ordinary conditions of cooking although it is obvious that whererapid heating is desired the burner plate may be removed, and thecooking or boiling carried on over the .open flame.

The burner plate with provision for protecting the burner againstdrippings, and the method of supporting the flame so as to confine theheat to an area commensurate to the surface of the average cookingutensil, but greater than the area indirect contact with the flame, isof great advantage in Ob: taining maximum heating eflicient witheconomical fuel consumption.

I claim as my invention:

1. In a stove of the character described, the combination of a burner, asolid plate of cast metal extending over the top of the stove above saidburner and comprising a burner plate having an imperforate por tionlocated immediately above said burner, a series of radial slotsextending from said imperforate portion toward the periphery of saidburner plate, and a series of circumferentially spaced slots beyond saidradial slots. I

2. In a stove of the character described, the combination of asolidplate of cast metal extending over the top of the stove andprovided with a circular opening, a burner mounted beneath said opening,and a plate seating in said opening and having a central imperforateportion immediately above said burner, radially disposed slots extendingfrom said imperforate portion,

and circumferentially spaced slots extending about the margin thereof.

3. In a stove of the character described, the combination of a burner, asolid plate of cast metal extending over the top of the stove above saidburner and providedwith an opening immediately above said burner havingaseries of circumferentially extending recesses around said opening, anda burner plate'seating in said opening and having an imperforatecentralportion substantially greater than said burner, and slotsradiating from said central portion,

l. In a stove of the character described, the combination with a burnerof a burner plate having an imperforate central portion immediatelyabove, and having a diameter substantially greater than said burner, aseries of slots radiating from said central portion, and dependingprojectings formed on the bottom surface of said plate at the inner endsof said slots.

5. I11 a stove of the character described,

the combination with a burner of a burner plate. above said burner andcomprising an iinperforate central portion immediately above saidburner, and aseries of slots radiating from said central portion, therebeing formed on the bottom surface of said plate and at the inner end ofeach slot a depending nub spaced outwardly beyond the periphery of saidburner. v

6. In a' stove of the character described, the combination with a topplate and a burner of a burner plate above said burner and comprising aniinperforate central porterminating at the inner ends thereof in detionof substantially the diameter of said pending nubs, spaced outwardlybeyond the burner, and a series of radial slots surperiphery ofsaidburner. rounding said central portion, there being Signed at SouthBend this 17 day of 5 formed on the bottom surface of said plate April1925.

a series of ribs radiating from the center thereof, in alignment withsaid slots, and ROBERT C. HIGGINS.

